F15B 2013/0412
With three positions
Official title: {with three positions}
F15B2013/0412 (With three positions) appears on 91 US grants and 83 published applications in this corpus.
Search patents in F15B- Granted patents
- 91
- Published applications
- 83
- Assignees
- 67
- Inventors
- 173
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 1 | 2 |
| 2015 | 0 | 6 |
| 2016 | 3 | 5 |
| 2017 | 5 | 5 |
| 2018 | 4 | 6 |
| 2019 | 7 | 8 |
| 2020 | 5 | 8 |
| 2021 | 9 | 9 |
| 2022 | 9 | 3 |
| 2023 | 5 | 11 |
| 2024 | 8 | 10 |
| 2025 | 9 | 3 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Multi-channel flow control system15 Sep 2026US 12,736,069 B2Industrial Technology Research Institute
- Compact hydraulically centered three-way transfer valve7 Apr 2026US 12,595,854 B2Hamilton Sundstrand Corporation
- Actuator and spool type directional control valve13 Jan 2026US 12,523,318 B2Danfoss Power Solutions (Zhejiang) Co. Ltd.
- Single stage servo valve assembly2 Dec 2025US 12,486,915 B2Hamilton Sundstrand Corporation
- Valve and aircraft25 Nov 2025US 12,480,534 B2Liebherr-Aerospace Lindenberg GmbH
- Multi-channel flow control system11 Jun 2026US 2026/0160277 A1Industrial Technology Research Institute
- Hydraulic system for working machine, working machine, and method of controlling working machine26 Mar 2026US 2026/0085496 A1Kubota Corporation
- Compact hydraulically centered three-way transfer valve19 Mar 2026US 2026/0078828 A1Hamilton Sundstrand Corporation
- Hydraulic force fight mitigation8 Jan 2026US 2026/0009408 A1Woodward, Inc.
- Rotary shear valve28 Aug 2025US 2025/0271068 A1
Most cited
By later US patents
- Digital servo valve system67US 5,036,886 AOlson Controls, Inc. · 1991
- Pilot valves for two-stage hydraulic devices47US 4,615,358 AVickers, Incorporated · 1986
- Electro-hydraulic control valve42US 4,396,037 AExpert Industrial Controls Limited · 1983
- Digital servo valve system32US 4,951,549 AOlsen Controls, Inc. · 1990
- Compound pneumatic valve30US 4,741,365 AMcDonnell Douglas Corporation · 1988